An over-the-top sandwich from Tyler Kord's A Super Upsetting Book About Sandwiches
Season the beef generously with salt. Melt the butter and combine with the fried shallots, chile powder, molasses, salt and white vinegar. "Rub it all over the beef like you want to spend the rest of your life with that beef and no other beef (but don't make any promises to that beef or it will wind up hating you for the rest of its life). At this point it would be best to put that beef in a container and let it hang in the refrigerator overnight. But you're impulsive and want to eat beef now. Okay, well then cook it, don't be afraid; your parents always knew your were impulsive. That's why, despite a lot of questioning and private conversations, they finally accepted your choice to be a cook instead of a college professor. Time heals all wounds, but roast beef waits for no man. Cook like you were born to do."
Tasting notes -- I would add some fresh cilantro leaves to this sandwich.